EXPERIMENTAL STUDY ON SIMPLIFICATION OF REINFORCEMENT IN RC SOFT-FIRST-STORY COLUMN-BEAM JOINTS WITH MECHANICAL ANCHORAGE OF COLUMN LONGITUDINAL REBAR

Abstract

This paper describes the simplification of reinforcement in RC soft-first-story column-beam joints with mechanically anchored column longitudinal rebar. The main objective was to reduce the complexity of reinforcement in the joint by anchoring column and beam main bars in a straight manner. Two types of reinforcement arrangements were proposed to particularly prevent anchorage failure of the beam top reinforcement and verified their effectiveness through static loading tests. The test results showed that both specimens behaved in ductile manners without brittle failure of the mechanically anchored column and beam longitudinal rebar.